Rachel Scott reports on the sweeping set of tariffs Pres. Trump announced on all of America's trading partners, and Rebecca Jarvis breaks down the immediate impact the new measures could have on the stock market and American families; With millions in the Heartland bracing for a once-in-a-generation storm, potentially bringing a combination of tornadoes and life-threatening flooding from Texas to Ohio, Victor Oquendo reports on the dangerous severe weather and Ginger Zee tracks it all out; David Muir remembers the life and legacy of actor Val Kilmer, one of Hollywood's biggest stars of the '80s and '90s with his roles in "Top Secret," "Top Gun," "Tombstone" and more; and more on tonight's broadcast of World News Tonight with David Muir.

Whit Johnson reports on the stock market suffering a second day of massive losses with the Dow down more than 2,000 points as China responds to Pres. Trump's new tariffs with a 34% retaliatory tariff on all U.S. products; Morgan Norwood has the latest on the massive storm system that's spawned tornadoes, flooding and killed at least eight people, including a Kentucky boy who was swept away by floodwaters, officials say; Mireya Villarreal has details on the rising star in the professional bull rider circuit who was killed in a horrific rodeo accident in Texas in front of thousands of people; and more on tonight's broadcast of World News Tonight with David Muir.